JPH06129378A - Rotary compressor - Google Patents

Rotary compressor

Info

Publication number
JPH06129378A
JPH06129378A JP27406692A JP27406692A JPH06129378A JP H06129378 A JPH06129378 A JP H06129378A JP 27406692 A JP27406692 A JP 27406692A JP 27406692 A JP27406692 A JP 27406692A JP H06129378 A JPH06129378 A JP H06129378A
Authority
JP
Japan
Prior art keywords
bearing
sub
sliding surface
discharge cover
cast iron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP27406692A
Other languages
Japanese (ja)
Inventor
Hidetoshi Nishihara
秀俊 西原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP27406692A priority Critical patent/JPH06129378A/en
Publication of JPH06129378A publication Critical patent/JPH06129378A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • F05C2201/0439—Cast iron
    • F05C2201/0442—Spheroidal graphite cast iron, e.g. nodular iron, ductile iron

Landscapes

  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To decrease the distortion of a bearing part in the direction of the bore, increase the area of the sliding surface, and reduce the wear by fitting by pressure a discharge cover on the bearing part of a sub-bearing installed on the side of cylinder opposite a motor-driven element, and forming the sub- bearing from ductile cast iron. CONSTITUTION:A sub-bearing 24 installed on that side of a cylinder constituting a compressing element system where a motor-driven element is located, is made from a ductile cast iron having Young's modulus over 15,000kg/mm<2>. A discharge cover 16 is fitted fast by pressure on the bearing part 24a of the sub- bearing 24. Thereby the distortion due to pressure fit of the discharge cover 16 is decreased by the rise of Young's modulus of the sub-bearing material, to allow decrease of the non-sliding surface 19 of the sub-bearing 24, and it is practicable to secure sufficient silding surface 18 and reduce the wear of a crank shaft 17 and sliding surface 18.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は横型のローリングピスト
ンタイプのロータリー圧縮機に関わり、特に軸摺動部の
信頼性向上に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal type rolling piston type rotary compressor, and more particularly to improving reliability of a shaft sliding portion.

【０００２】[0002]

【従来の技術】近年、ロータリー圧縮機に対する市場で
の期待寿命は増々、長寿化を要求する方向になってい
る。2. Description of the Related Art In recent years, the expected life of rotary compressors on the market has been increasing, and the demand for longer life is increasing.

【０００３】以下図面を参照しながら、特開昭５７−１
４６０７４号公報に示されている従来の圧縮機の一例に
ついて説明する。図３は従来のロータリー圧縮機の側面
断面図で図４はその要部拡大図である。Referring to the drawings below, Japanese Patent Application Laid-Open No. 57-1
An example of a conventional compressor shown in Japanese Patent Publication No. 46074 will be described. FIG. 3 is a side sectional view of a conventional rotary compressor, and FIG. 4 is an enlarged view of a main part thereof.

【０００４】１は密閉容器で、密閉容器１内には、圧縮
要素２と電動要素３とを備え、前記圧縮要素２を構成す
るシリンダー４の、反電動要素側に設けた副軸受け１４
に給油管１５と一体になった吐出カバー１６が軸受部１
４外周に圧入固定されている。１７はクランク軸で副軸
受け１４の摺動面１８上を回転する。１９は非摺動面で
前記吐出カバー１６を圧入するときのひずみを吸収する
為に設けられている。副軸受け１４は、通常、加工性，
潤滑性に優れたねずみ鋳鉄が用いられる。Reference numeral 1 denotes a hermetic container, and the hermetic container 1 includes a compression element 2 and an electric element 3, and a sub-bearing 14 provided on the non-electric element side of a cylinder 4 constituting the compression element 2.
The discharge cover 16 integrated with the oil supply pipe 15 is attached to the bearing unit 1.
4 Press-fitted and fixed to the outer circumference. A crankshaft 17 rotates on a sliding surface 18 of the auxiliary bearing 14. A non-sliding surface 19 is provided to absorb strain when the discharge cover 16 is press-fitted. The sub-bearing 14 usually has a workability,
Gray cast iron with excellent lubricity is used.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、上記従
来の構成では、吐出カバー１６の圧入ひずみを吸収する
為に、非摺動面１９を設けているので摺動面１８が十分
確保できず、クランク軸１７及び摺動面１８の摩耗が大
きくなり、信頼性にかけるという課題があった。However, in the above-mentioned conventional structure, since the non-sliding surface 19 is provided in order to absorb the press-fitting strain of the discharge cover 16, the sliding surface 18 cannot be sufficiently secured, and the crank There is a problem that the shaft 17 and the sliding surface 18 are greatly worn and reliability is deteriorated.

【０００６】本発明は上記課題に鑑み、クランク軸及び
摺動面の摩耗を少なくし、品質の良い圧縮機を提供する
ものである。In view of the above problems, the present invention provides a compressor of good quality with less wear on the crankshaft and sliding surfaces.

【０００７】[0007]

【課題を解決するための手段】以上のような課題を解決
するために、本発明の圧縮機は、圧縮要素を構成するシ
リンダーの反電動要素側に設けた副軸受けの軸受部外周
に吐出カバーを圧入するとともに、前記副軸受けの材質
がダクタイル鋳鉄としたものである。In order to solve the above-mentioned problems, the compressor of the present invention has a discharge cover on the outer periphery of the bearing portion of the auxiliary bearing provided on the side of the anti-electric element of the cylinder constituting the compression element. While press-fitting, the auxiliary bearing is made of ductile cast iron.

【０００８】[0008]

【作用】吐出カバーの圧入によるひずみはヤング率の上
昇によって減少し、そのため非摺動面を減らす事がで
き、摺動面を十分確保することができる。The strain due to the press-fitting of the discharge cover is reduced by the increase of the Young's modulus, so that the non-sliding surface can be reduced and the sliding surface can be sufficiently secured.

【０００９】[0009]

【実施例】以下本発明の一実施例の圧縮機について、図
面を参照しながら説明する。なお従来と同一部品につい
ては、同一符号を付して詳細な説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A compressor according to an embodiment of the present invention will be described below with reference to the drawings. It should be noted that the same parts as those of the related art are designated by the same reference numerals and detailed description thereof will be omitted.

【００１０】図１、及び図２において、２４は圧縮要素
系１２を構成するシリンダー４の反電動要素側に設けた
副軸受けで、ヤング率１５０００ｋｇ／ｍｍ2以上の鋳
鉄でできている。In FIGS. 1 and 2, reference numeral 24 is a sub-bearing provided on the side of the cylinder 4 which constitutes the compression element system 12 on the side opposite to the electromotive element, and is made of cast iron having a Young's modulus of 15000 kg / mm 2 or more.

【００１１】以上の様な構成において、吐出カバー１６
が軸受部２４ａ外周に圧入固定されている。ここで副軸
受け２４はダクタイル鋳鉄でできており、通常ヤング率
１５０００ｋｇ／ｍｍ2以上を有しているため、ヤング
率８０００ｋｇ／ｍｍ2程度のねずみ鋳鉄に較べ、剛性
が高く、カバー１６の圧入による軸受部２４ａの内径方
向へのひずみが減少し、このひずみの影響を逃がすため
の非摺動面１９を減らす事で、摺動面１８の面積を増や
す事ができ、クランク軸１７及び摺動面１８の摩耗を低
減する事ができる。In the above-mentioned structure, the discharge cover 16
Is press-fitted and fixed to the outer periphery of the bearing portion 24a. Here the sub-bearing 24 is made of ductile iron, because they usually have a Young's modulus 15,000 kg / mm 2 or more, compared to the Young's modulus 8000 kg / mm 2 approximately gray cast iron, high rigidity, by press-fitting of the cover 16 The strain of the bearing portion 24a in the inner diameter direction is reduced, and the non-sliding surface 19 for releasing the influence of this strain is reduced, so that the area of the sliding surface 18 can be increased, and the crankshaft 17 and the sliding surface can be increased. The wear of 18 can be reduced.

【００１２】[0012]

【発明の効果】以上のように本発明は、シリンダーの反
電動要素側に設けた副軸受けの軸受部外周に吐出カバー
を圧入するとともに、前記副軸受けの材質がダクタイル
鋳鉄としたことで、軸受部の内径方向へのひずみが減少
し、摺動面の面積を増やす事で摩耗を低減でき、品質の
良い圧縮機を提供することができる。As described above, according to the present invention, the discharge cover is press-fitted to the outer circumference of the bearing portion of the sub-bearing provided on the side opposite to the electromotive element of the cylinder, and the material of the sub-bearing is ductile cast iron. It is possible to provide a high-quality compressor by reducing the strain in the inner diameter direction of the part and increasing the area of the sliding surface to reduce wear.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明による圧縮機の一実施例の側面断面図FIG. 1 is a side sectional view of an embodiment of a compressor according to the present invention.

【図２】図１の要部拡大断面図FIG. 2 is an enlarged cross-sectional view of the main part of FIG.

【図３】従来の圧縮機の側面断面図FIG. 3 is a side sectional view of a conventional compressor.

【図４】図３の要部拡大断面図FIG. 4 is an enlarged cross-sectional view of the main part of FIG.

【符号の説明】[Explanation of symbols]

１ 密閉容器 ２ 圧縮要素 ３ 電動要素 ４ シリンダー ２４ 副軸受け ２４ａ 軸受部 １６ 吐出カバー DESCRIPTION OF SYMBOLS 1 Airtight container 2 Compression element 3 Electric element 4 Cylinder 24 Sub bearing 24a Bearing part 16 Discharge cover

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 密閉容器内に圧縮要素と電動要素を設
け、前記圧縮要素を構成するシリンダーの反電動要素側
に設けた副軸受けの軸受部外周に吐出カバーを圧入する
とともに、前記副軸受けの材質がダクタイル鋳鉄である
ことを特徴としたロータリー圧縮機。1. A compression element and an electric element are provided in a hermetic container, and a discharge cover is press-fitted onto the outer periphery of a bearing portion of a sub-bearing provided on the side opposite to the electric element of a cylinder constituting the compression element. A rotary compressor characterized by being made of ductile cast iron.
JP27406692A 1992-10-13 1992-10-13 Rotary compressor Pending JPH06129378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27406692A JPH06129378A (en) 1992-10-13 1992-10-13 Rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27406692A JPH06129378A (en) 1992-10-13 1992-10-13 Rotary compressor

Publications (1)

Publication Number Publication Date
JPH06129378A true JPH06129378A (en) 1994-05-10

Family

ID=17536499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27406692A Pending JPH06129378A (en) 1992-10-13 1992-10-13 Rotary compressor

Country Status (1)

Country Link
JP (1) JPH06129378A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755102B1 (en) * 2000-04-24 2007-09-04 오지 세이시 가부시키가이샤 An automobile interior headliner molding or forming member and an automobile interior headliner member using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755102B1 (en) * 2000-04-24 2007-09-04 오지 세이시 가부시키가이샤 An automobile interior headliner molding or forming member and an automobile interior headliner member using the same

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